(19)
(11) EP 1 375 908 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.06.2006 Bulletin 2006/23

(43) Date of publication A2:
02.01.2004 Bulletin 2004/01

(21) Application number: 03013415.9

(22) Date of filing: 20.06.2003
(51) International Patent Classification (IPC): 
F02N 11/08(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 27.06.2002 JP 2002187813

(71) Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHA
Minato-ku, Tokyo 107-8556 (JP)

(72) Inventors:
  • Wakitani, Tsutomu
    Wako-shi, Saitama 351-0193 (JP)
  • Inagawa, Toshinori
    Wako-shi, Saitama 351-0193 (JP)

(74) Representative: HOFFMANN EITLE 
Patent- und Rechtsanwälte Arabellastrasse 4
81925 München
81925 München (DE)

   


(54) Engine starting device


(57) A starter motor is prevented from being rotated together with an engine (2) after the start of a engine. When motor speed exceeds the cranking speed after the start of the engine, a speed judging section (36) judges that the starter motor is rotated together with the engine. A current-supply stopping section (38) commands to stop energizing a motor (3a) in response to the judge. After the electricity supply is stopped, if the rotation speed is reduced to a value close to the cranking speed, judging section (36) outputs a signal to cancel the current-supply stopping commands from the current-supply stopping section (38). The detection of the motor speed is also continued even after the ignition, and if the speed is further increased, the speed detection is stopped. If the speed is increased to a value showing complete explosion, the speed judging section (36) switches the relays to a generator.







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